This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 2019.010.20098. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the value property of a Field object within AcroForms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-8230.
Conclusion & alert: CVE-2019-6771 is rated Low Risk (37.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.24%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-10-14 | 0.65% | 0.24% | -0.41% |
| 2 | 2025-07-04 | 0.75% | 0.65% | -0.11% |
| 3 | 2025-05-21 | — | 0.75% | — |
Full EPSS history (19 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 3.3 | 3.0 | LOW |
|
1.8 | 1.4 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| foxitsoftware | foxit_reader | <= 9.4.1.16828 | cpe:2.3:a:foxitsoftware:foxit_reader:*:*:*:*:*:*:*:* |
| foxitsoftware | phantompdf | <= 8.3.9.41099 | cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:* |
| foxitsoftware | phantompdf | >= 9.0.0, <= 9.4.1.16828 | cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.foxitsoftware.com/support/security-bulletins.php | Patch Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-19-445/ | Third Party Advisory VDB Entry |